ELECTRICAL INSULATING OILS, ASTM D 3487 |
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Test Description |
Method |
Physical Properties |
|
Visual Examination of Electrical Insulating Oils |
ASTM D 1524 |
Color, ASTM Color Scale |
ASTM D 1500 |
Aniline Point of Petroleum Products |
ASTM D 611.a |
Flash Point, Cleveland Open Cup |
ASTM D 92.a |
Interfacial Tension of Oils by Ring Method |
ASTM D 971 |
Viscosity, Kinematic, at 40ºC , cSt |
ASTM D 445.a |
Viscosity, Kinematic, at 100°C, cSt |
ASTM D 445.b |
Viscosity, Kinematic, at 0°C, cSt |
ASTM D 445.c |
API Gravity of Petroleum Products, Hydrometer Method (Density, Relative Density, Specific Gravity) |
ASTM D 1298 |
Pour Point of Petroleum Oils |
ASTM D 97 |
Water Content by Karl Fischer, Insulating Liquids |
ASTM D 1533 |
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Electrical Properties |
|
Dielectric Breakdown Voltage, Disc Electrodes |
ASTM D 877 |
Dielectric Breakdown Voltage, VDE Electrodes |
ASTM D 1816 |
Dielectric Breakdown Voltage of Insulating Oils Under Impulse Conditions |
ASTM D 3300 |
Gassing Tendency of Insulating Oils Under Electrical Stress |
ASTM D 2300 |
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| Chemical Properties |
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Acid Number, Color Indicator Titration (TAN) |
ASTM D 974.a |
Oxidation Stability, Mineral Insulating Oil 72 hrs |
ASTM D 2440.b |
Oxidation Stability, Mineral Insulating Oil 164 hrs |
ASTM D 2440.a |
Oxidation Stability, Mineral Insulating Oils, RBOT |
ASTM D 2112 |
Oxidation Inhibitor in Insulating Oil by Infrared Absorption |
ASTM D 2668 |
Corrosive Sulfur in Electrical Insulating Oil |
ASTM D 1275 |
Water Content by Karl Fischer, Insulating Liquids |
ASTM D 1533 |
PCBs in Insulating Oil by Gas Chromatography |
ASTM D 4059 |
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Additional Optional Tests |
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Oxidation Inhibitor in Insulating Oil by Gas Chromatography |
ASTM D 4768 |
PCBs in Transformer Insulating Oils by GC |
EPA 600/4-81-045 |
PCB Content, Screening Test in Oil, ppm |
TOL 5049 |
Sediment and Soluble Sludge in Service-Aged Insulating Oil |
ASTM D 1698 |
Chloride, Inorganic, and Sulfate in Insulating Oil |
ASTM D 878 |
